add 1876

fishercoder1534 · fishercoder1534 · commit 662ec2f92f3d · 2021-05-29T16:06:43.000-07:00
diff --git a/README.md b/README.md
@@ -8,6 +8,7 @@ _If you like this project, please leave me a star._ &#9733;
 
 |  #  |      Title     |   Solutions   | Video  | Difficulty  | Tag                   
 |-----|----------------|---------------|--------|-------------|-------------
+|1876|[Substrings of Size Three with Distinct Characters](https://leetcode.com/problems/substrings-of-size-three-with-distinct-characters/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1876.java) ||Easy|String|
 |1869|[Longer Contiguous Segments of Ones than Zeros](https://leetcode.com/problems/longer-contiguous-segments-of-ones-than-zeros/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1869.java) ||Easy|Array, Two Pointers|
 |1863|[Sum of All Subset XOR Totals](https://leetcode.com/problems/sum-of-all-subset-xor-totals/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1863.java) ||Easy|Backtracking, Recursion|
 |1862|[Sum of Floored Pairs](https://leetcode.com/problems/sum-of-floored-pairs/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_1862.java) ||Hard|Math|
diff --git a/src/main/java/com/fishercoder/solutions/_1876.java b/src/main/java/com/fishercoder/solutions/_1876.java
@@ -0,0 +1,16 @@
+package com.fishercoder.solutions;
+
+public class _1876 {
+    public static class Solution1 {
+        public int countGoodSubstrings(String s) {
+            int count = 0;
+            for (int i = 0; i < s.length() - 2; i++) {
+                String candidate = s.substring(i, i + 3);
+                if (candidate.charAt(0) != candidate.charAt(1) && candidate.charAt(0) != candidate.charAt(2) && candidate.charAt(1) != candidate.charAt(2)) {
+                    count++;
+                }
+            }
+            return count;
+        }
+    }
+}
